Acoustic mapping of fish aggregation areas to improve fisheries management in Las Perlas Archipelago, Pacific Panama

Sarah J M Harper, C Richard Bates, Hector M Guzman, James M Mair

    Research output: Contribution to journalArticle

    Abstract

    The purpose of this study was to investigate, characterize and map areas of the seabed of Las Perlas Archipelago (LPA), Republic of Panama using swath-bathymetry acoustic sonar techniques and to assess these methods as tools for feeding information into management zoning policy. In 2007 the LPA was granted conservation protection under national legislation. However, detailed management plans are still pending. Seabed mapping plays a fundamental role in identifying areas which should be prioritized within the management framework. Visual representation of habitat maps provides an effective medium for involving stakeholders in a co-management arena. In this survey, acoustically mapped areas of the seabed were ground-truthed using a combination of benthic grab samples, drop-down video and diver observations. The resulting mapped areas were then incorporated into a Geographic Information System (GIS) for further analysis. The output was a physical characterization of the seabed at three locations selected for being areas of high rugosity (habitat complexity) and, therefore, their potential importance as valuable fish aggregation sites. The rocky reefs and rhodolith beds identified in this survey represent particularly important fish aggregation and nursery habitats which should be considered priorities for protection under the management plans. This survey demonstrated the use of acoustic techniques to spatially resolve topographic features and physical characteristics of the seabed, illustrating their potential value as tools for fisheries management and marine reserve zoning in Las Perlas Archipelago and elsewhere. © 2010 Elsevier Ltd.

    Original languageEnglish
    Pages (from-to)615-623
    Number of pages9
    JournalOcean and Coastal Management
    Volume53
    Issue number10
    DOIs
    Publication statusPublished - Oct 2010

    Fingerprint

    fishery management
    archipelago
    acoustics
    habitat
    zoning policy
    fish
    rhodolith
    swath bathymetry
    acoustic method
    comanagement
    marine park
    sonar
    zoning
    stakeholder
    reef
    management plan

    Cite this

    Harper, Sarah J M ; Bates, C Richard ; Guzman, Hector M ; Mair, James M. / Acoustic mapping of fish aggregation areas to improve fisheries management in Las Perlas Archipelago, Pacific Panama. In: Ocean and Coastal Management. 2010 ; Vol. 53, No. 10. pp. 615-623.
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    Acoustic mapping of fish aggregation areas to improve fisheries management in Las Perlas Archipelago, Pacific Panama. / Harper, Sarah J M; Bates, C Richard; Guzman, Hector M; Mair, James M.

    In: Ocean and Coastal Management, Vol. 53, No. 10, 10.2010, p. 615-623.

    Research output: Contribution to journalArticle

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